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ref - What kind of reference is this variable?
Standard output, standard error and command line redirection
substitution - video
Memoization - speeding up function calls by caching of return values
Fix the documentation of the MetaCPAN::Client
List all the Perl modules and distributions in a name-space using Meta CPAN
seek - move the position in the filehandle in Perl
How to change @INC to find Perl modules in non-standard locations
Detect recursion using state variables
Solution: add more statistics - video
Solution: area of rectangular - video
Solution: area prompt and warn - video
Solution: improve the color selector - check input - video
Solution: improve the color selector - colors.txt - video
Solution: improve the color selector - filename - video
Solution: improve the color selector - force - video
Solution: improve the color selector - video
Solution: number guessing game - d debug toggle - video
Solution: number guessing game - exit - video
Solution: number guessing game - m move toggle - video